• An ISO 9001:2015 Certified Company
  • Call

    +91 9930108105

  • Address

    Sanghvi Galaxy, Shop No.2, Khetwadi
    10th Lane, Mumbai-400004, India

Stainless Steel 904L Ferrule Fittings

Stainless steel 904l ferrule fittings

What is 904L stainless steel used for?

This grade, alloyed with 23-28% chromium, 4-5% nickel, and molybdenum, enjoys favour with many industrial applications. Stainless steel 904L ferrule fittings display excellent resistance to corrosion and pitting and have a low carbon content that protects against intergranular corrosion.

The core applications of this superaustenitic stainless steel are in chemical processing plants for producing phosphate-based fertilisers. 904L ferrule fittings are straightforward to install and deliver leak-tight performance in petrochemicals, bleaching equipment for paper production, and gas desulfurisation.

SS 904L instrumentation fittings use a double-ferrule arrangement for a firm and secure mechanical grip between tubing. The basic structure includes a body, a nut, and the ferrule.


Most Trusted Manufacturer of SUS 904L Tube Fitting at Lowest Price in India

Stainless Steel 904l Ferrule Fittings Specification


ASTM A182 F904L Tube Fittings Delivery Schedules


Country  Name  Delivery Time
Angola    15-20 Days 
Madagascar
Nigeria
Ghana
Kenya

UNS N08904 Compression Fittings Price Table


Item USD INR AED
1/2" OD SS904L TWIN FERRULE SETS $12.62 ₹930.55 د.إ46.36
904l SS Compression Fitting 38" tube Od X 12 Npt Male $34.66 ₹2556.41 د.إ127.27
1/2" OD X 1/4" BSPT(M) SUS 904l Coupling $22.70 ₹1673.04 د.إ83.38
1/4 NPT X 50L UNS N08904 Ferrules $3.78 ₹278.63 د.إ13.86
AISI 904L Double Ferrule Fitting 3/8 Inch $65.24 ₹4806.69 د.إ239.23

Supplier of ASTM B649 UNS N08904 Compression Fittings in Size Ranging from 1/4" to 3/4", Also Custom Option Available

Sizes of DIN 1.4539 Adapter Fittings


Imperial sizes (inches) 1/16 1/8 3/16 1/4 5/16 3/8 1/2 5/8 3/4 1 1 1/2
Metric sizes (mm) 3 4 6 8 10 12 16 18 20 25  

What are the properties of Stainless Steel 904L Ferrule Fittings?

Ferrule fittings are standard piping components to build leak-proof and well-aligned connections. WNR 1.4539 tube fittings usually get manufactured in sizes of 1/8 to 2 inches for pressure ratings up to 10,000 psi.

904L stainless steel double ferrule fittings can withstand seawater, sulfuric acid, and chlorides without experiencing damage or loss in strength. They are highly corrosion resistant, with an average PREN of 36.7.

Here are other properties that make them sought after by many industries:

  • Can handle severe temperatures up to 450°C
  • High tensile and yield strength of 490 and 220 MPa
  • Retain mechanical properties at elevated temperatures
  • Ideal for changing thermal conditions in heat exchangers and condensers
  • Good weldability using standard techniques
  • Easy to fabricate for diverse purposes

SS 904L compression fittings mandate strict manufacturing with dimensional accuracy to guarantee failure-free performance.

Types of SS 904l Instrumentation Fittings


SS 904L ferrule fittings

SS 904L ferrule fittings

904L compression fittings

904L compression fittings

UNS N08904 904L instrumentation fittings

UNS N08904 904L instrumentation fittings

WNR 1.4539 SS 904L tube fittings

WNR 1.4539 SS 904L tube fittings

Check SS 904L Instrumentation Fittings Working Pressure and Chemical Composition Before Buying the Material

SUS 904L Ferrules Working Pressure


End Connection Size of SUS 904L Tube Fittings inch 1/16 1/8 3/16 1/4 5/16 3/8 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 2
Max Allowable Working Pressure of UNS N08904 instrument fittings mm 3 6 8 10 12 14 15 16 18 20 22 25 28 30
Up to 100°F psig 12000 10900 10200 10200 8000 7500 6700 6000 5800 4800 4700 4800 4900 3600
bar 670 710 520 580 470 430 400 400 370 380 340 320 330 310
At maximum temperature 1000°F (537°C) psig 9120 8284 7752 7752 6080 5700 5092 4560 4408 3648 3572 3648 3724 2736
bar 509 540 395 441 357 327 304 304 281 289 258 243 251 236

SA 182 Grade F904L Compression Fittings Chemical composition



How does the tensile strength of Stainless Steel 904L Ferrule Fittings vary with temperature?

Buyers must consider environmental factors while choosing ASTM B649 UNS N08904 ferrule fittings. These components boast excellent mechanical strength even in elevated conditions.

As a rule of thumb, the tensile strength increases when the temperature reduces. It comes down when the temperature increases since the grain size and the dislocation density rise.

On the other hand, the ductility of SS 904L tube fittings decreases with decreasing temperature.

View DIN 1.4539 Single and Double Ferrule Fittings Dimensions and Pressure Ratings Here

Dimensions of Stainless Steel 904l Compression Fittings


OD actual OD Thread - NB Thread per inch
(inches) (fraction inch) (inches) BSP  NPT
0.405 13/32 1/8 28 27
0.3125 5/16 1/16 28 27
0.675 43/64 3/8 19 18
0.540 35/64 1/4 19 18
0.840 27/32 1/2 14 14
1.315 1-5/16 1 11 11-1/2
1.050 1-3/64 3/4 14 14
1.660 1-21/32 1-1/4 11 11-1/2
2.375 2-3/8 2 11 8
1.900 1-29/32 1-1/2 11 11-1/2
2.875 2-7/8 2-1/2 11 8
4.0 4 3-1/2 11 8
3.5 3-1/2 3 11 8
4.5 4-1/2 4 11 8
6.625 6-5/8 6 11 8
5.563 5-5/8 5 11 8

ASTM A276 904L Tube Fittings Pressure Ratings


Male Female
NPT/BSPT Shape Straight Shape Straight
1/16 9500 10000 7000 7500
3/8 7200 07200 5000 5300
1/4 7500 07500 5600 6600
1/2 5800 06600 4500 5200
1 4600 04600 3900 4500
3/4 6400 06400 3500 4300
1-1/4 3500 03500 3100 3500
2 2600 02600 2300 2700
1-1/2 2900 02900 2500 3200
1/8 9100 09100 5500 6400

SS 904l Instrumentation Fittings Mechanical Properties


Grade Density Tensile strength Melting points Elongation Yield strength(0.2% offset)
SS 8.0g/ cm3 PSI-75000, MPa-515 1400°C (255°F) 35% PSi-30000, MPa-205
Exporter of SA 182 Grade F904L Adapter Fittings as Per NACE MR0175 Standards, Refer Thread Types and Physical Properties

ASTM B649 UNS N08904 Coupling Physical Properties


Grade 904L
Elastic Modulus (GPa) 190
Density (kg/m3) 7900
Thermal Conductivity (W/m.K) At 20°C 11.5
Mean Co-eff of Thermal Expansion (µm/m/°C) 0-100°C 15
Specific Heat 0-100°C (J/kg.K) 500
Elec Resistivity (nΩ.m) 952

AISI 904L Adapter Fittings Thread Types


Marking symbol GC M BR R-ED K R N
Full form BSPP Gauge Connector Metric Thread BSP/ISO Parallel BSPP/ISO Parallel BSP/ISO Taper BSP/ISO Parallel NPT(1)/ National Pipe Taper
Standard DIN 3852 B2779 ISO 228/1+2 ISO 6149-2 ISO 228/1+2 BS2779 DIN 3852 FORM B ISO 228/1+2 BS2779 DIN 3852 BS21, ISO7/1 ISO 228/1+2 BS2779 DIN 3852 FORM A ANSI B1.20.1

DIN 1.4539 Double Ferrule Fittings Equivalent Grade


Grade ASTM ASME UNS WNR BS EN AFNOR
America Australia North America Russia United Kingdom Europe France
SS 904L Tube Fittings ASTM A182 / ASTM A479 ASME SA182 / ASME SA479 N08904 1.4539 904S13 X1NiCrMoCu25-20-5 Z2NCDU25-20

Other Types of SS 904l Ferrule Fittings


SS 904L male connector

SS 904L male connector

904L female connector

904L female connector

SS 904l front ferrule

SS 904l front ferrule

SS 904l back ferrule

SS 904l back ferrule

SS 904L bulkhead union

SS 904L bulkhead union

904L equal union

904L equal union

SS 904l male elbow

SS 904l male elbow

SS 904l reducing union

SS 904l reducing union

Applications of ASTM A276 904L Instrumentation Fittings


  • → Textile machinery
  • → Pulp and paper industry
  • → Oil and gas industry
  • → Furniture
  • → Synthetic fiber
  • → Power plants
  • → Pharmaceutical processing industry
  • → Energy industries
  • → Dairy and food processing
  • → Fluid piping
  • → Modern architecture
  • → Home appliances
  • → Heat exchanger
  • → Water waste projects